(6) The Federal Constitution, which was amended by referendum on 18 April 1999 and which entered into force on 1 January 2000, gives every person the right to have his privacy respected and, in particular, to be protected from the misuse of data concerning him. The Federal Court has, on the basis of the previous Constitution, which did not contain any such provision, developed a case-law laying down the general principles applicable to the processing of personal data concerning, in particular, the quality of the data processed, the right of access of the persons concerned, and the right to request the correction or destruction of data. These principles are binding both on the Federation and on each canton.

(8) Most of the cantons have adopted legislation on data protection for the areas for which they are competent, in particular public hospitals, education, direct cantonal taxes and the police. In the remaining cantons, such data processing is governed by regulatory acts or by the principles of cantonal case-law. Whatever the source and content of the cantonal provisions, or even if no cantonal provisions exist, cantons must adhere to the constitutional principles. In their field of responsibility, the cantonal authorities may have to transfer personal data to public authorities in neighbouring countries, mainly for the purpose of mutual assistance to safeguard important public interests or, in the case of public hospitals, to protect the vital interest of the persons concerned.